Structurally different from conventional oxide ferroelectrics with rigid lattices, van der Waals
(vdW) ferroelectrics have stable layered structures with a combination of strong intralayer …

Oxide perovskites have emerged as an important class of materials with important
applications in many technological areas, particularly thermocatalysis, electrocatalysis …

Ferroelectric domain walls have emerged as a new type of interface in which the dynamic
characteristics of ferroelectricity introduce the element of spatial mobility, allowing real-time …

The rapid increase in information in the big-data era calls for changes to information-
processing paradigms, which, in turn, demand new circuit-building blocks to overcome the …

Dielectric capacitors with ultrahigh power densities are fundamental energy storage
components in electrical and electronic systems. However, a long-standing challenge is …

Scanning transmission electron microscopy (STEM) has emerged as a uniquely powerful
tool for structural and functional imaging of materials on the atomic level. Driven by …

Ferroelectric and ferroelastic domain walls are 2D topological defects with thicknesses
approaching the unit cell level. When this spatial confinement is combined with observations …

Energy‐related problems induced by ever‐continuous fossil consumption have arisen as
one of the most challenging issues in the 21st century, imposing urgent demands on …

The figure-of-merits of ferroelectrics for transducer applications are their electromechanical
coupling factor and the operable temperature range. Relaxor-PbTiO3 ferroelectric crystals …

Flexible piezoelectric acoustic sensors have been developed to generate multiple sound
signals with high sensitivity, shifting the paradigm of future voice technologies. Speech …